Letter rack



FIG. 1 is a front left perspective view of a letter rack showing my newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is an additional front left perspective view thereof; and,

FIG. 8 is an additional front left perspective view thereof.

The broken-line disclosure in the views is understood to representportions of the article in which the claimed design is embodied, butwhich form no part of the claimed design.

The ornamental design for a letter rack, as shown and described. 